John "Jack" Mellor was an English footballer who played as a full back in the Football League

The Football League

The Football League, also known as the npower Football League for sponsorship reasons, is a league competition featuring professional association football clubs from England and Wales. Founded in 1888, it is the oldest such competition in world football...

 for Manchester United

Manchester United F.C.

Manchester United Football Club is an English professional football club, based in Old Trafford, Greater Manchester, that plays in the Premier League. Founded as Newton Heath LYR Football Club in 1878, the club changed its name to Manchester United in 1902 and moved to Old Trafford in 1910.The 1958...

 and Cardiff City

Cardiff City F.C.

Cardiff City Football Club are a Welsh professional football club based in Cardiff, Wales. The club competes in the English football pyramid and is currently playing in the Football League Championship. Cardiff City is the best supported football club in Wales, averaging approximately 22,500 for...

. He was born in Oldham

Oldham

Oldham is a large town in Greater Manchester, England. It lies amid the Pennines on elevated ground between the rivers Irk and Medlock, south-southeast of Rochdale, and northeast of the city of Manchester...

, Lancashire

Lancashire

Lancashire is a non-metropolitan county of historic origin in the North West of England. It takes its name from the city of Lancaster, and is sometimes known as the County of Lancaster. Although Lancaster is still considered to be the county town, Lancashire County Council is based in Preston...

. In his early days, he played for Witton Albion

Witton Albion F.C.

Witton Albion F.C. are a football club based in Northwich, England. They were founded in 1887. They have won the Cheshire Senior Cup 11 times since 1902. Their most recent success in this competition was in 2006, when they defeated Stalybridge Celtic in the final. They have also reached the FA Cup...

. In June 1929, he was sold to Manchester United, where he made 122 appearances without scoring. He stayed with United until 1937 when he was sold to Cardiff City

Cardiff City F.C.

Cardiff City Football Club are a Welsh professional football club based in Cardiff, Wales. The club competes in the English football pyramid and is currently playing in the Football League Championship. Cardiff City is the best supported football club in Wales, averaging approximately 22,500 for...

. He made his Cardiff debut in an 8–1 defeat of Luton Town

Luton Town F.C.

Luton Town Football Club is an English professional football club based since 1905 at Kenilworth Road, Luton, Bedfordshire. The club currently competes in the fifth tier of English football, the Conference National, for the third consecutive season during the 2011–12 season.Formed in 1885, it was...

and stayed for two seasons before being forced to retire from injury.